Advertising indicator.



PATENTED MAR. 24, 1908.

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s 'Hump- Qi/ O. E. JOHNSON. ADVERTISING INDICATOR.

`APPLIOATION FILED JULY 15.1907.

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No. 882,640. l PATENTED MAR. '24, 1908.

. '0. E. JOHNSON.

ADVERTISING INDICATOR.

APPLICATION FILED JULY 15.1907. I

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"liu-Illu! lllllllllll u 'UNITED STATES vPATENT oisrrrcn.l

CHARLES ELWYNN JOHNSON, OF INDIANAPOLIS, INDIANA.

ADVERTISING INDICATOR.

No. 882,64o.

To all whom it may concern: v

Be it known that I, CHARLES ELWYNN JOHNSON, a citizen ofthe UnitedStates, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Advertising Indicators, of which the following is a specification.

The object of my invention is to produce an apparatus for the automatic display of successive signs, the apparatus-being especially designed for indicating streets or stations in conjunction with advertising matter, and therefore comprising means for the automatic reversal of movement of the indicator web when the end of the route has been reached, andv also comprising such improvements in details of construction as shall be hereinafter pointed out.

The accompanying drawings illustrate my invention: Y

Figure 1 is a transverse section just inside the left hand end-plate (Fig. 9), Fig. 2 a similar view just inside the right hand endplate (Fig. 9); Fig. 3 a rear elevation with the rear plate removed; Fig. 4 an aXial sectional detail ofthe automatic reversing mechanism, Fig. 5 a detail of one of the circuit closing means carried by the movable web; Fig. 6 a sectional detail of -the magnetic clutch; Fig. 7 a side elevation of the time solenoid; Fig. 8 afront elevation of said solenoid; and Fig. 9 a front elevation of the completed structure, on a smaller scale.

In the drawings, 10 and 11 indicate a pair of reels suitably journaled, respectively, ink

the top and bottom of the main supporting frame 12. Wound upon said reels, and extending from one to the other over suitable idlers 13 at the top and bottom front corners of the frame, is a web 14 upon the face of which is arranged suitable indicating or advertising matter to be visible through the face of the machine. The heads 10 and 11, respectively, are formed of magnetizable material, such, for instance, as soft iron, and arranged concentric with head 10 is a rotatable magnetic clutch 15, while a similar magnetic clutch 16 is arranged concentric with the head 11. The two clutches 15 and 16 are rotated in opposite directions by any suitable means. For instance, in the drawings I have shown a small electric motor 17, the shaft of which is connected by a belt 18 with a shaft 19 provided on its opposite ends with worms 20 and 21 which mesh respec- Specicaton of Letters Patent.

Application filed July 15, 1907.

Patented March 24, 1908.

Serial No. 383,897.

tively with gears 15 and 16', of the clutches 15 and 16 respectively, said worms, in the arrangement shown, being of opposite itch so as to rotate the heads in opposite irections.

Power for the motor, clutches and other electrical portions of the device is supplied from a suitable generator and, in order to properly shift the energizing current for the clutches at the ends of the movement of the web 14 I provide a switch comprising a pair of terminals 26 and 27, a second pair of terminals 28 and 29, a switch member 30 adapted to enter between and connect either of said pairs of terminals, and a pair of solenoids 31 and 32 adapted to act upon the member so as to shift it from one pair of terminals to the other.

In order to hold the display in stationary position during a certain limited time, I provide a timing structure comprising a solenoid 35, the core 36 of which is provided with a dash pot piston 37 arranged in a dash pot 38. The core 36 also carries a head 39 adapted to engage, and form a connection between, a pair of spring terminals 40 and 41. Head 39 also carries an arm 42 adapted to play between a pai-r of collars 43 and 44 of a shifter rod 45 adapted to engage and swing a terminal 46 so as to swing said terminal into or out of engagement with a terminal 47. The web 14 is of non-conducting material, such for instance as oil cloth, and threaded through it, at intervals equal to a display space, are fine wires 50, the two ends of each of which preferably lie upon opposite faces ofthe web, as clearly shown in Fig. 5, in order to insure contact with a pair of terminal rollers 51 and 52 arranged so that the web will pass between them.' The shafts of said rollers are engaged by light spring arms 51 and 52.

Each of the reels is provided at its center with a radially movable member 53, one end of which is attached to a radially movable slide 54 equipped at one end with a roller 55, the slide 54, together with its roller 55 and member 5 3, being normally urged outward radially by a spring 56, as indicated in dotted lines on the lower side of Fig. 2. Arranged in the path of movement of each roller 55, when said roller is in its radially .extended position, is a s ring terminal 57 normally out of contact wit a coacting terminal 58.

The following circuits are then established :-The wire 60 connects'the positive side of the generator 25 with one terminal of the motor 17, while the wire 62 connects the other terminal of said motor with terminal 40; wire 63 connects terminal 41 with the negative side of generator' 25; wire 64 connects wire 63 with the stationary terminal 47, while the swinging terminal 46 is connected by wire 65 with the spring finger 52 and roller 52, the spring finger 51l is connected by a wire 66 with one side of the coil of solenoid 35, while the other side of said coil is connected by wire 67 with the positive side of generator 25. Terminal 26 is connected by wire 67 with one end of the coils of the magnetic clutch 15, while the other terminal of said coils is connected by a wire 68 with the negative side of the generator 25 while terminals 27 and 29 are connected by a wire 69 and thence by wire 60 to the positive side of generator 25 3 terminal 28 is connected by a wire 70 with one end of the coil of clutch 16 while the other end is connected by wire 71 with wire 68, the coil of solenoid 32 is provided with a pair of terminals 32 and 32, terminal 32 being connected by a wire 72 with the negative side of generator 25 while terminal 32 is connected by a wire 73 with that spring terminal 57 which is adjacent reel 10, the coacting stationary terminal 58 being connected by a wire 74 with the negative side of generator 25. The coil of solenoid 31 is provided with a pair of terminals 31 and 31 and terminal 31 is connected by wire 75 with wire 72 while terminal 31 is connected by a wire 76 with that spring terminal 57 which is arranged adjacent reel 11 g the adjacent terminal 58 being connected by a wire 77 with wire 74.

The operation is as follows: With the parts in the position shown in the drawings the motor circuit is established by head 39 between terminals 40 and 41. Shaft 19 will therefore be driven in the direction indicated by the arrow in Fig. 1, thus positively rotating the two vmagnetic clutches in the directions indicated by the arrows. Head 30, lying between terminals 26 and 27 establishes the circuit 26-67M clutch 15v63-25--60v 69-27-30-26, and the magnetic clutch,

i 35 and thus pull the core 36 upward, thus withdrawing head 39 from engagement with the terminals 40 and 41 and consequently breaking the motor circuit, the spring terminals 40w41 moving upward a short distance with head 39. As head 39 nears the uplper end of its stroke, its linger 42 engages co ar 44 of rod 45 and withdraws terminal 46 from engagement with terminal 47 (the parts being held in this position by a light spring 100) thus breaking the circuit of the coil of the solenoid 35 so as to deenergize it. Thereupon the core 36 is free to descend, its speed of descent being determined by the dash pot 37-33, and thus deterniining the time during which the web 14 will remain stationary. As head 39 nears its lowest position itwill engage the raised ends of terminals 40 and 41 so as to close the circuit ol the motor shortly before linger 42 engages collar 43 of rod 45 so that said motor will operate to withdraw the wire 5() from between rollers 51 and 52 so as to break the circuit of solenoid 35 at that point before it is restablished` by the downward movement of rod 45 (through the engagement of linger 42 with collar 43) and consequent closure oll the solenoid circuit by the bringing ol" terminal 46 into engagement again with terminal 47.

As the rotation of the reels 10 and 11 is continued the rollers 55 thereof do not engage the corresponding terminals 57 until the web has been entirely unwound from one or the other of the reels. l/Vith the parts moving in the directions already supposed, tlio upward :movement of the web 14 will con tinue step-by-step until the last turn of the web about the spindle of the reel 10 is reached, when continued rotation of the reel will withdraw the web from portion 53 so as to permit spring 56 of that reel to urge its roller 55 to a position where rotation of the reel 11 will cause said roller 55 to engage the adjacent terminal 57, thus establishing the Circuit 57v58-77w7425-7275 3l coil of 31-31-7 6, thus energizing solenoid 31 and drawing head 3() from between terminals 26 and 27 so as to break the circuit ol clutch 15, and forcing said head 30 between terminals 23 and 29, thus immediately establishing the circuit of clutch 16 as follows: .2S-70# clutch l6 7168-25-1G0w6l4 29v30, so that, the motor continuing to rotate as before, clutch 16 will become activo and clutch 15 inactive, and therefore drive reel 11 so as to reverse web 14 and draw it downward, the motor circuit being intermittently broken and established by solenoid. 35 as the wires 50 are successively brought between the rollers 51 and 52, in the manner already described. When the web 14 has been drawn downward and entirely unwound from reel 10, the roller 55 of said. reel will establish the circuit 57--73--324 coil, of 32-3272e42574--58 so as to energize solenoid 32 and thus draw head 30 bach between terminals 26 and drawings. The time of exposure of any given portion of the web 14 may be accurately determined and adjusted by proper adjustment of the dash-pot 37%33 in the usual well known manner.

27, as shown in the i I claim as my invention 1. In an apparatus of the class described, the combination, with a pair oi' reels and a web carried thereby, of a pair of magnetic' clutches, one for each reel, a motor for driving said clutches, and means controlled by the movement of the web for alternately energizing the clutches.

2. In an apparatus of the class described, the combination, with a pair ofreels and a web carried thereby, of a pair of magnetic clutches, one for each reel, a motor for driving said clutches, a circuit for each of said clutches, a switch for alternately making and breaking the'V clutch circuits, and means carried by the reels and controlled by the movement of the web for shifting said switch.

3. In an apparatus of the class described, the combination, with a pair of reels and a web carried thereby, of a pair of magnetic clutches, one for each reel, a motor, for driving said clutches, a circuit for each of said clutches, a switch for alternately making and breaking the clutch circuits, a pair of solenoids for shifting said switch in opposite directions, a circuit for each of said solenoids, a pair of normally separated terminals in each of said solenoid circuits, and a movable member carried by each reel. and each adapted to engage one of said terminals when in abnormal position, and means engaged by lthe web for normally holding said member away from engagement with its coacting terminal.

4. In an apparatus of the class described, the combination, with a pair of reels and a web carried thereby, of a motor for driving said reels, a circuit controller for said motor, a solenoid for operating said controller in one direction, means for controlling said solenoid, and a dashpot controlling the reverse movement of said motor-controller. 5. In an apparatus of the class described, the combination, with a pair of reels, and a web carried thereby, of a motor for driving said'reels, a circuit controller for said motor, a solenoid for operating said controller in one direction, means controlled by the movement of the web for controlling said solenoid, and a dash-pot controlling the reverse movement of said motor-controller.

6f In an apparatus of the class described, the combination, with a web and means for supporting the saine, of a motor for driving said web, a motor circuit comprising a pair of terminals, a movable connector between said terminals retaining connection between the terminals for a portion of its movement, a solenoid for moving said movable connector in one direction, a circuit including two circuit breakers ior said solenoid, means carried by the web for controlling one of said circuit breakers, and means controlled by the movable connector iior controlling the other of said circuit breakers.

In witness whereof, I, have hereunto set my hand and seal at Indianapolis, Indiana, this thirteenth day of July, A. D. one thousand nine hundred and seven.

CHARLES ELWYNN JOHNSON.

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